If you live in the Bay Area, you're living in some of the most expensive real estate in the country. Surprised? The city of Atherton in San Mateo County, ZIP code 94027, tops PropertyShark's Most ...

You probably knew Atherton was expensive, but did you know it was the most expensive ZIP code in the country? With a $7 million median home price tag, Atherton’s 94027 remains the No. 1 most expensive ...